Resilient industrial control systems based on multiple redundancy

The incessant search for cost-effective recovery solutions for structural controllability has led to one of the most challenging research areas within the field of critical infrastructure protection. The resilience of large distributions, like industrial control scenarios, is proving to be a complicated mission due to the inherent non-locality problems of structural controllability and its susceptibility to advanced threats. To address these issues, this paper proposes a new repair approach based on multiple redundant pathways and the lessons learnt from the work presented in Alcaraz and Lopez (2016). From Alcaraz and Lopez (2016), we have adapted the local measures to combine them with each of the five strategies of remote reconnection described in this paper. To validate the sustainability of the combined approaches, two practical case studies are presented here showing that a local dependence on a brother driver node together with remote dependence is enough to reach optimal states.